Volume 21, Number 1 - Spring 1988 (1988)
Peer-Review Articles
Observations of the Gallery Habits of Trypodendron Retusum (Coleoptera: Scolytidae) Infesting Aspen in Central Michigan
Steven D. Brewer, Robert A. Beck, and Richard A. Roeper
Seasonal Correction Factors for the Biotic Index
William L. Hilsenhoff
Revisionary Notes on Predaceous Heptageniidae Based on Larval and Adult Associations (Ephemeroptera)
W. P. McCafferty and A. V. Provonsha
Movement, Dispersion, and Orientation of a Population of the Colorado Potato Beetle, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae), in Eggplant
Charles E. Williams
Ectoparasites and Other Arthropod Associates of the Hairy-tailed Mole, Parascalops Breweri
John O. Whitaker Jr and Thomas W. French
Ectoparasites and Other Arthropod Associates of Some Voles and Shrews From the Catskill Mountains of New York
John O. Whitaker Jr. and Thomas W. French